Subj : Re: Short interval timing
To   : borland.public.cpp.borlandcpp
From : Giampaolo Bellini
Date : Thu Apr 29 2004 03:03 pm


you can also real the cpu timestamp:

__int64 __fastcall GetRDTSC(void)

{
    asm
      dw 0x310F
}


			Giampaolo Bellini



john blackburn wrote:
> Gerhard Wolfstieg wrote:
> 
> 
>>>In it, I am trying to time short intervals (less than a few seconds)
>>>reasonably accurately.  Now, the time functions in <time.h> which, I
>>>believe, have their origins in Unix seem only to have the granularity of
>>>whole seconds.  Is there a way I can determine the time between two
>>>events more accurately than this, whilst only using standard C and C++
>>>libraries ?
>>
>>Try:
>>
>>#include <Windows.h>
>>
>>{       SYSTEMTIME sysTime;
>>//...
>>        GetLocalTime( &sysTime );
>>}
>>
>>and catch milliseconds.
>>
>>        gw
> 
> 
> 
> Thanks for the reply.  Is <Windows.h> supported under Unix/Linux/Mac ?
> 
> 
> John

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